HOME Cart(0) Quotation About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (18 Oct 2025)

GA/T 1942-2021 English PDF

US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GA/T 1942-2021: Forensic sciences - Examination methods for nitrocellulose - IR
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GA/T 1942-2021	English	189	Add to Cart	3 days [Need to translate]	Forensic sciences - Examination methods for nitrocellulose - IR	Valid	GA/T 1942-2021

PDF similar to GA/T 1942-2021

Standard similar to GA/T 1942-2021

GA/T 1788.2 GA/T 1711 GA/T 424 GA/T 1933 GA/T 1934 GA/T 1932

Basic data

Standard ID	GA/T 1942-2021 (GA/T1942-2021)
Description (Translated English)	Forensic sciences - Examination methods for nitrocellulose - IR
Sector / Industry	Public Security (Police) Industry Standard (Recommended)
Classification of Chinese Standard	A92
Classification of International Standard	13.310
Word Count Estimation	8,897
Date of Issue	2021-10-14
Date of Implementation	2022-05-01
Issuing agency(ies)	Ministry of Public Security

GA/T 1942-2021: Forensic sciences - Examination methods for nitrocellulose - IR

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 13.310 CCSA92 People's Republic of China Public Security Industry Standards forensic science Nitrocellulose Examination Infrared Spectroscopy Released on 10-14-2021 2022-05-01 Implementation Released by the Ministry of Public Security of the People's Republic of China

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document was proposed by the National Criminal Technology Standardization Technical Committee Physical and Chemical Inspection Sub-Technical Committee (SAC/TC179/SC4) and submitted Focus on. This document was drafted by. Tianjin Municipal Public Security Bureau Physical Evidence Identification Center, Ministry of Public Security Physical Evidence Identification Center, Shandong Provincial Public Security Department Physical Evidence Identification Center, Criminal Science and Technology Research Institute of Tai'an Public Security Bureau, People's Public Security University of China, China Criminal Police College, Criminal Technology of Heilongjiang Provincial Public Security Bureau Corps, Criminal Technology Center of Guangdong Provincial Public Security Department, Physical Evidence Identification Center of Hunan Provincial Public Security Bureau, Criminal Science and Technology Research Institute of Jining Public Security Bureau, South Beijing Municipal Public Security Bureau Criminal Science and Technology Research Institute, Guangxi Zhuang Autonomous Region Public Security Department Criminal Investigation Team, Xinjiang Uygur Autonomous Region Public Security Department Criminal Investigation Corps. The main drafters of this document. Wang Yongqing, Tao Ying, Meng Jie, Wang Ping, Li Haiyan, Men Teng Teng, Li Wenhai, Lian Jie, Zhao Pengcheng, Zhang Dalei, Zhang Liang, Gao Mi, Qu Xiaojing, Li Liming, Li Hongsen, Li Wei, Zhang Fang, Nan Shiliang, Zhao Yang, Wang Rujiao. forensic science Nitrocellulose Examination Infrared Spectroscopy

1 Scope

This document specifies a method for the infrared spectroscopic examination of nitrocellulose in the forensic science field. This document is applicable to the qualitative analysis and comparative inspection of nitrocellulose components in the field of forensic science, and can also be used as a reference in other fields.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 6040 General Rules for Analytical Methods of Infrared Spectroscopy GA/T 242 Physicochemical Examination Terminology for Trace Evidence in Forensic Science

3 Terms and Definitions

The terms and definitions defined in GB/T 6040 and GA/T 242 apply to this document.

4 principles

Under the irradiation of continuous wavelength infrared light, nitrocellulose can produce infrared absorption spectrum, and infrared spectroscopy can be used to analyze nitrocellulose. Perform a qualitative test.

5 Reagents and Materials

Reagents and materials include. a) Acetone (C3H6O, analytically pure); b) Potassium bromide (KBr, spectroscopically pure); c) Nitrocellulose reference substance; d) Potassium bromide wafers; e) Sodium chloride wafers.

6 Instruments and equipment

Instruments and equipment include. a) Infrared spectrometer, equipped with infrared microscope, diamond cell, attenuated total reflection (ATR) and other accessories; b) Infrared tablet press; c) agate mortar;

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GA/T 1942-2021_English be delivered?

Answer: Upon your order, we will start to translate GA/T 1942-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GA/T 1942-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GA/T 1942-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.